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DOI	10.1016/j.palaeo.2020.109857
	Can ancient insect exoskeleton δ13C values be used to infer past vegetation types?
	Cantwell-Jones A.; Wurster C.; Zwart C.; Bird M.
发表日期	2020
ISSN	0031-0182
卷号	555
英文摘要	Insects encode proxy environmental information about regional vegetation structure in the stable carbon isotope (δ13C) composition of their tissues. However, uncertainty lies in the exact relationship between “community” insect δ13C values and the overall structure of the vegetation from which the insects come, specifically the cover of C3 and C4 plants. This study aimed to determine this relationship using modern samples of insects collected from sites ranging from rain forest (high C3 cover) to savanna (high C4 cover) across an environmental gradient in tropical Australia. Insect δ13C values were strongly related to modern variations in C3 and C4 cover, although difficulties arose when estimating the vegetation structure of sites with low vegetation cover in arid central Australia. We further found the best models for predicting vegetation structure also included additional constraints provided by variation in precipitation. Overall, our results confirm that ancient insect δ13C values, such as those recovered from insectivorous bat and bird guano deposits, can indeed provide a robust palaeoenvironmental proxy for inferring the trajectory of past vegetation change in the tropics. © 2020 Elsevier B.V.
英文关键词	C3 vegetation; C4 vegetation; Chitin; Stable carbon isotopes
语种	英语
scopus关键词	carbon isotope; environmental gradient; paleoenvironment; precipitation (climatology); proxy climate record; rainforest; vegetation cover; vegetation structure; vegetation type; Australia; Aves; Hexapoda
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150412
作者单位	Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom; ARC Centre of Excellence for Australian Biodiversity and Heritage, College of Science and Engineering, James Cook University, P.O. Box 6811, Cairns, QLD 4870, Australia
推荐引用方式 GB/T 7714	Cantwell-Jones A.,Wurster C.,Zwart C.,et al. Can ancient insect exoskeleton δ13C values be used to infer past vegetation types?[J],2020,555.
APA	Cantwell-Jones A.,Wurster C.,Zwart C.,&Bird M..(2020).Can ancient insect exoskeleton δ13C values be used to infer past vegetation types?.Palaeogeography, Palaeoclimatology, Palaeoecology,555.
MLA	Cantwell-Jones A.,et al."Can ancient insect exoskeleton δ13C values be used to infer past vegetation types?".Palaeogeography, Palaeoclimatology, Palaeoecology 555(2020).